Revert "add current_page to PaginatableArray"
Revert "add current_page to PaginatableArray"

This partially reverts commit 7532ecc4fccab6dfc9178a6c724e7fda8156b67a.

Zhomart/kaminari,plribeiro3000/kaminari,iberianpig/kaminari,sanrodari/kaminari,Teino1978-Corp/Teino1978-Corp-kaminari,sachin21/kaminari,aelogica/kaminari,thiagorp/kaminari,peter-umb/umbie_kaminari,parity/kaminari,Boomkat/kaminari,peter-umb/umbie_kaminari,mperrando/kaminari,mrstif/cursor,JuanitoFatas/kaminari,barkbox/cursor,guodongme/kaminari,aelogica/kaminari,amatsuda/kaminari,mperrando/kaminari,aereal/kaminari,bonekost/kaminari,yui-knk/kaminari,danimashu/kaminari,amatsuda/kaminari,sachin21/kaminari,sideci-sample/sideci-sample-kaminari,mrhead/kaminari,bonekost/kaminari,antstorm/kaminari,wkirschbaum/kaminari,Boomkat/kaminari,sr-education/kaminari,sendgrid/kaminari,pat/kaminari,bsboris/kaminari,danimashu/kaminari,varvet/kaminari,helloqidi/mykaminari,pat/kaminari,guodongme/kaminari,parity/kaminari,kaminari/kaminari,sendgrid/kaminari,sr-education/kaminari,sendgrid/kaminari,royels/kaminari,wkirschbaum/kaminari,yui-knk/kaminari,jcoyne/kaminari,jiamaozheng/kaminari,epicagency/kaminari,bsboris/kaminari,dblock/kaminari,JuanitoFatas/kaminari,sanrodari/kaminari,joe1chen/kaminari,Zhomart/kaminari,aslanvaroqua/kaminari-mobile-views,antstorm/kaminari,epicagency/kaminari,joe1chen/kaminari,mrhead/kaminari,Teino1978-Corp/Teino1978-Corp-kaminari,onursarikaya/kaminari,thiagorp/kaminari,jiamaozheng/kaminari,fkagami/kaminari,royels/kaminari,iberianpig/kaminari,varvet/kaminari,dblock/kaminari,kaminari/kaminari,onursarikaya/kaminari,plribeiro3000/kaminari